A 58 year old married to an 8 year old - bad male behaviour in Saudi Arabia

A 8-year-old girl in Saudi Arabia has been married off to a 58-year-old man in Saudi Arabia, by her father, according to this report in The Guardian.

A judge has turned down her mother's plea to divorce the two. Instead the girl will have to enter a plea for divorce when she reaches puberty - but what's going to happen to her in the meantime?

The girl's parents are divorced and it seems that this sort of arrangement is sometimes made by men to get at their ex-wives.

What does this say about Islam? What does Islam say about this?